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Diffstat (limited to 'vpx_dsp/arm/fdct8x8_neon.h')
-rw-r--r-- | vpx_dsp/arm/fdct8x8_neon.h | 381 |
1 files changed, 381 insertions, 0 deletions
diff --git a/vpx_dsp/arm/fdct8x8_neon.h b/vpx_dsp/arm/fdct8x8_neon.h new file mode 100644 index 000000000..d8fa60044 --- /dev/null +++ b/vpx_dsp/arm/fdct8x8_neon.h @@ -0,0 +1,381 @@ +/* + * Copyright (c) 2022 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef VPX_VPX_DSP_ARM_FDCT8X8_NEON_H_ +#define VPX_VPX_DSP_ARM_FDCT8X8_NEON_H_ + +#include <arm_neon.h> + +static INLINE void vpx_fdct8x8_pass1_notranspose_neon(int16x8_t *in, + int16x8_t *out) { + int16x8_t s[8], x[4], t[2]; + + s[0] = vaddq_s16(in[0], in[7]); + s[1] = vaddq_s16(in[1], in[6]); + s[2] = vaddq_s16(in[2], in[5]); + s[3] = vaddq_s16(in[3], in[4]); + s[4] = vsubq_s16(in[3], in[4]); + s[5] = vsubq_s16(in[2], in[5]); + s[6] = vsubq_s16(in[1], in[6]); + s[7] = vsubq_s16(in[0], in[7]); + // fdct4(step, step); + x[0] = vaddq_s16(s[0], s[3]); + x[1] = vaddq_s16(s[1], s[2]); + x[2] = vsubq_s16(s[1], s[2]); + x[3] = vsubq_s16(s[0], s[3]); + + // fdct4(step, step); + // out[0] = (tran_low_t)fdct_round_shift((x0 + x1) * cospi_16_64) + // out[4] = (tran_low_t)fdct_round_shift((x0 - x1) * cospi_16_64) + butterfly_one_coeff_s16_fast(x[0], x[1], cospi_16_64, &out[0], &out[4]); + // out[2] = (tran_low_t)fdct_round_shift(x2 * cospi_24_64 + x3 * cospi_8_64) + // out[6] = (tran_low_t)fdct_round_shift(-x2 * cospi_8_64 + x3 * cospi_24_64) + butterfly_two_coeff(x[3], x[2], cospi_8_64, cospi_24_64, &out[2], &out[6]); + + // Stage 2 + // t0 = (s6 - s5) * cospi_16_64; + // t1 = (s6 + s5) * cospi_16_64; + butterfly_one_coeff_s16_fast(s[6], s[5], cospi_16_64, &t[1], &t[0]); + + // Stage 3 + x[0] = vaddq_s16(s[4], t[0]); + x[1] = vsubq_s16(s[4], t[0]); + x[2] = vsubq_s16(s[7], t[1]); + x[3] = vaddq_s16(s[7], t[1]); + + // Stage 4 + // out[1] = (tran_low_t)fdct_round_shift(x0 * cospi_28_64 + x3 * cospi_4_64) + // out[7] = (tran_low_t)fdct_round_shift(x3 * cospi_28_64 + x0 * -cospi_4_64) + butterfly_two_coeff(x[3], x[0], cospi_4_64, cospi_28_64, &out[1], &out[7]); + + // out[5] = (tran_low_t)fdct_round_shift(x1 * cospi_12_64 + x2 * cospi_20_64) + // out[3] = (tran_low_t)fdct_round_shift(x2 * cospi_12_64 + x1 * -cospi_20_64) + butterfly_two_coeff(x[2], x[1], cospi_20_64, cospi_12_64, &out[5], &out[3]); +} + +static INLINE void vpx_fdct8x8_pass2_notranspose_neon(int16x8_t *in, + int16x8_t *out) { + int16x8_t s[8], x[4], t[2]; + + s[0] = vaddq_s16(in[0], in[7]); + s[1] = vaddq_s16(in[1], in[6]); + s[2] = vaddq_s16(in[2], in[5]); + s[3] = vaddq_s16(in[3], in[4]); + s[4] = vsubq_s16(in[3], in[4]); + s[5] = vsubq_s16(in[2], in[5]); + s[6] = vsubq_s16(in[1], in[6]); + s[7] = vsubq_s16(in[0], in[7]); + // fdct4(step, step); + x[0] = vaddq_s16(s[0], s[3]); + x[1] = vaddq_s16(s[1], s[2]); + x[2] = vsubq_s16(s[1], s[2]); + x[3] = vsubq_s16(s[0], s[3]); + + // fdct4(step, step); + // out[0] = (tran_low_t)fdct_round_shift((x0 + x1) * cospi_16_64) + // out[4] = (tran_low_t)fdct_round_shift((x0 - x1) * cospi_16_64) + butterfly_one_coeff_s16_s32_fast_narrow(x[0], x[1], cospi_16_64, &out[0], + &out[4]); + // out[2] = (tran_low_t)fdct_round_shift(x2 * cospi_24_64 + x3 * cospi_8_64) + // out[6] = (tran_low_t)fdct_round_shift(-x2 * cospi_8_64 + x3 * cospi_24_64) + butterfly_two_coeff(x[3], x[2], cospi_8_64, cospi_24_64, &out[2], &out[6]); + + // Stage 2 + // t0 = (s6 - s5) * cospi_16_64; + // t1 = (s6 + s5) * cospi_16_64; + butterfly_one_coeff_s16_s32_fast_narrow(s[6], s[5], cospi_16_64, &t[1], + &t[0]); + + // Stage 3 + x[0] = vaddq_s16(s[4], t[0]); + x[1] = vsubq_s16(s[4], t[0]); + x[2] = vsubq_s16(s[7], t[1]); + x[3] = vaddq_s16(s[7], t[1]); + + // Stage 4 + // out[1] = (tran_low_t)fdct_round_shift(x0 * cospi_28_64 + x3 * cospi_4_64) + // out[7] = (tran_low_t)fdct_round_shift(x3 * cospi_28_64 + x0 * -cospi_4_64) + butterfly_two_coeff(x[3], x[0], cospi_4_64, cospi_28_64, &out[1], &out[7]); + + // out[5] = (tran_low_t)fdct_round_shift(x1 * cospi_12_64 + x2 * cospi_20_64) + // out[3] = (tran_low_t)fdct_round_shift(x2 * cospi_12_64 + x1 * -cospi_20_64) + butterfly_two_coeff(x[2], x[1], cospi_20_64, cospi_12_64, &out[5], &out[3]); +} + +static INLINE void vpx_fdct8x8_pass1_neon(int16x8_t *in) { + int16x8_t out[8]; + vpx_fdct8x8_pass1_notranspose_neon(in, out); + // transpose 8x8 + transpose_s16_8x8(&out[0], &out[1], &out[2], &out[3], &out[4], &out[5], + &out[6], &out[7]); + in[0] = out[0]; + in[1] = out[1]; + in[2] = out[2]; + in[3] = out[3]; + in[4] = out[4]; + in[5] = out[5]; + in[6] = out[6]; + in[7] = out[7]; +} + +static INLINE void vpx_fdct8x8_pass2_neon(int16x8_t *in) { + int16x8_t out[8]; + vpx_fdct8x8_pass2_notranspose_neon(in, out); + // transpose 8x8 + transpose_s16_8x8(&out[0], &out[1], &out[2], &out[3], &out[4], &out[5], + &out[6], &out[7]); + in[0] = out[0]; + in[1] = out[1]; + in[2] = out[2]; + in[3] = out[3]; + in[4] = out[4]; + in[5] = out[5]; + in[6] = out[6]; + in[7] = out[7]; +} + +#if CONFIG_VP9_HIGHBITDEPTH +static INLINE void vpx_highbd_fdct8x8_pass1_notranspose_neon(int32x4_t *left, + int32x4_t *right) { + int32x4_t sl[8], sr[8], xl[4], xr[4], tl[4], tr[4]; + + sl[0] = vaddq_s32(left[0], left[7]); + sl[1] = vaddq_s32(left[1], left[6]); + sl[2] = vaddq_s32(left[2], left[5]); + sl[3] = vaddq_s32(left[3], left[4]); + sl[4] = vsubq_s32(left[3], left[4]); + sl[5] = vsubq_s32(left[2], left[5]); + sl[6] = vsubq_s32(left[1], left[6]); + sl[7] = vsubq_s32(left[0], left[7]); + sr[0] = vaddq_s32(right[0], right[7]); + sr[1] = vaddq_s32(right[1], right[6]); + sr[2] = vaddq_s32(right[2], right[5]); + sr[3] = vaddq_s32(right[3], right[4]); + sr[4] = vsubq_s32(right[3], right[4]); + sr[5] = vsubq_s32(right[2], right[5]); + sr[6] = vsubq_s32(right[1], right[6]); + sr[7] = vsubq_s32(right[0], right[7]); + + // fdct4(step, step); + // x0 = s0 + s3; + xl[0] = vaddq_s32(sl[0], sl[3]); + xr[0] = vaddq_s32(sr[0], sr[3]); + // x1 = s1 + s2; + xl[1] = vaddq_s32(sl[1], sl[2]); + xr[1] = vaddq_s32(sr[1], sr[2]); + // x2 = s1 - s2; + xl[2] = vsubq_s32(sl[1], sl[2]); + xr[2] = vsubq_s32(sr[1], sr[2]); + // x3 = s0 - s3; + xl[3] = vsubq_s32(sl[0], sl[3]); + xr[3] = vsubq_s32(sr[0], sr[3]); + + // fdct4(step, step); + // out[0] = (tran_low_t)fdct_round_shift((x0 + x1) * cospi_16_64) + // out[4] = (tran_low_t)fdct_round_shift((x0 - x1) * cospi_16_64) + butterfly_one_coeff_s32_fast(xl[0], xr[0], xl[1], xr[1], cospi_16_64, + &left[0], &right[0], &left[4], &right[4]); + // out[2] = (tran_low_t)fdct_round_shift(x2 * cospi_24_64 + x3 * cospi_8_64) + // out[6] = (tran_low_t)fdct_round_shift(-x2 * cospi_8_64 + x3 * cospi_24_64) + butterfly_two_coeff_s32(xl[3], xr[3], xl[2], xr[2], cospi_8_64, cospi_24_64, + &left[2], &right[2], &left[6], &right[6]); + + // Stage 2 + // t0 = (s6 - s5) * cospi_16_64; + // t1 = (s6 + s5) * cospi_16_64; + butterfly_one_coeff_s32_fast(sl[6], sr[6], sl[5], sr[5], cospi_16_64, &tl[1], + &tr[1], &tl[0], &tr[0]); + + // Stage 3 + xl[0] = vaddq_s32(sl[4], tl[0]); + xr[0] = vaddq_s32(sr[4], tr[0]); + xl[1] = vsubq_s32(sl[4], tl[0]); + xr[1] = vsubq_s32(sr[4], tr[0]); + xl[2] = vsubq_s32(sl[7], tl[1]); + xr[2] = vsubq_s32(sr[7], tr[1]); + xl[3] = vaddq_s32(sl[7], tl[1]); + xr[3] = vaddq_s32(sr[7], tr[1]); + + // Stage 4 + // out[1] = (tran_low_t)fdct_round_shift(x0 * cospi_28_64 + x3 * cospi_4_64) + // out[7] = (tran_low_t)fdct_round_shift(x3 * cospi_28_64 + x0 * -cospi_4_64) + butterfly_two_coeff_s32(xl[3], xr[3], xl[0], xr[0], cospi_4_64, cospi_28_64, + &left[1], &right[1], &left[7], &right[7]); + + // out[5] = (tran_low_t)fdct_round_shift(x1 * cospi_12_64 + x2 * cospi_20_64) + // out[3] = (tran_low_t)fdct_round_shift(x2 * cospi_12_64 + x1 * -cospi_20_64) + butterfly_two_coeff_s32(xl[2], xr[2], xl[1], xr[1], cospi_20_64, cospi_12_64, + &left[5], &right[5], &left[3], &right[3]); +} + +static INLINE void vpx_highbd_fdct8x8_pass2_notranspose_neon(int32x4_t *left, + int32x4_t *right) { + int32x4_t sl[8], sr[8], xl[4], xr[4], tl[4], tr[4]; + + sl[0] = vaddq_s32(left[0], left[7]); + sl[1] = vaddq_s32(left[1], left[6]); + sl[2] = vaddq_s32(left[2], left[5]); + sl[3] = vaddq_s32(left[3], left[4]); + sl[4] = vsubq_s32(left[3], left[4]); + sl[5] = vsubq_s32(left[2], left[5]); + sl[6] = vsubq_s32(left[1], left[6]); + sl[7] = vsubq_s32(left[0], left[7]); + sr[0] = vaddq_s32(right[0], right[7]); + sr[1] = vaddq_s32(right[1], right[6]); + sr[2] = vaddq_s32(right[2], right[5]); + sr[3] = vaddq_s32(right[3], right[4]); + sr[4] = vsubq_s32(right[3], right[4]); + sr[5] = vsubq_s32(right[2], right[5]); + sr[6] = vsubq_s32(right[1], right[6]); + sr[7] = vsubq_s32(right[0], right[7]); + + // fdct4(step, step); + // x0 = s0 + s3; + xl[0] = vaddq_s32(sl[0], sl[3]); + xr[0] = vaddq_s32(sr[0], sr[3]); + // x1 = s1 + s2; + xl[1] = vaddq_s32(sl[1], sl[2]); + xr[1] = vaddq_s32(sr[1], sr[2]); + // x2 = s1 - s2; + xl[2] = vsubq_s32(sl[1], sl[2]); + xr[2] = vsubq_s32(sr[1], sr[2]); + // x3 = s0 - s3; + xl[3] = vsubq_s32(sl[0], sl[3]); + xr[3] = vsubq_s32(sr[0], sr[3]); + + // fdct4(step, step); + // out[0] = (tran_low_t)fdct_round_shift((x0 + x1) * cospi_16_64) + // out[4] = (tran_low_t)fdct_round_shift((x0 - x1) * cospi_16_64) + butterfly_one_coeff_s32_fast(xl[0], xr[0], xl[1], xr[1], cospi_16_64, + &left[0], &right[0], &left[4], &right[4]); + // out[2] = (tran_low_t)fdct_round_shift(x2 * cospi_24_64 + x3 * cospi_8_64) + // out[6] = (tran_low_t)fdct_round_shift(-x2 * cospi_8_64 + x3 * cospi_24_64) + butterfly_two_coeff_s32_s64_narrow(xl[3], xr[3], xl[2], xr[2], cospi_8_64, + cospi_24_64, &left[2], &right[2], &left[6], + &right[6]); + + // Stage 2 + // t0 = (s6 - s5) * cospi_16_64; + // t1 = (s6 + s5) * cospi_16_64; + butterfly_one_coeff_s32_fast(sl[6], sr[6], sl[5], sr[5], cospi_16_64, &tl[1], + &tr[1], &tl[0], &tr[0]); + + // Stage 3 + xl[0] = vaddq_s32(sl[4], tl[0]); + xr[0] = vaddq_s32(sr[4], tr[0]); + xl[1] = vsubq_s32(sl[4], tl[0]); + xr[1] = vsubq_s32(sr[4], tr[0]); + xl[2] = vsubq_s32(sl[7], tl[1]); + xr[2] = vsubq_s32(sr[7], tr[1]); + xl[3] = vaddq_s32(sl[7], tl[1]); + xr[3] = vaddq_s32(sr[7], tr[1]); + + // Stage 4 + // out[1] = (tran_low_t)fdct_round_shift(x0 * cospi_28_64 + x3 * cospi_4_64) + // out[7] = (tran_low_t)fdct_round_shift(x3 * cospi_28_64 + x0 * -cospi_4_64) + butterfly_two_coeff_s32_s64_narrow(xl[3], xr[3], xl[0], xr[0], cospi_4_64, + cospi_28_64, &left[1], &right[1], &left[7], + &right[7]); + + // out[5] = (tran_low_t)fdct_round_shift(x1 * cospi_12_64 + x2 * cospi_20_64) + // out[3] = (tran_low_t)fdct_round_shift(x2 * cospi_12_64 + x1 * -cospi_20_64) + butterfly_two_coeff_s32_s64_narrow(xl[2], xr[2], xl[1], xr[1], cospi_20_64, + cospi_12_64, &left[5], &right[5], &left[3], + &right[3]); +} + +static INLINE void vpx_highbd_fdct8x8_pass1_neon(int32x4_t *left, + int32x4_t *right) { + int32x4x2_t out[8]; + vpx_highbd_fdct8x8_pass1_notranspose_neon(left, right); + + out[0].val[0] = left[0]; + out[0].val[1] = right[0]; + out[1].val[0] = left[1]; + out[1].val[1] = right[1]; + out[2].val[0] = left[2]; + out[2].val[1] = right[2]; + out[3].val[0] = left[3]; + out[3].val[1] = right[3]; + out[4].val[0] = left[4]; + out[4].val[1] = right[4]; + out[5].val[0] = left[5]; + out[5].val[1] = right[5]; + out[6].val[0] = left[6]; + out[6].val[1] = right[6]; + out[7].val[0] = left[7]; + out[7].val[1] = right[7]; + + transpose_s32_8x8(&out[0], &out[1], &out[2], &out[3], &out[4], &out[5], + &out[6], &out[7]); + + left[0] = out[0].val[0]; + right[0] = out[0].val[1]; + left[1] = out[1].val[0]; + right[1] = out[1].val[1]; + left[2] = out[2].val[0]; + right[2] = out[2].val[1]; + left[3] = out[3].val[0]; + right[3] = out[3].val[1]; + left[4] = out[4].val[0]; + right[4] = out[4].val[1]; + left[5] = out[5].val[0]; + right[5] = out[5].val[1]; + left[6] = out[6].val[0]; + right[6] = out[6].val[1]; + left[7] = out[7].val[0]; + right[7] = out[7].val[1]; +} + +static INLINE void vpx_highbd_fdct8x8_pass2_neon(int32x4_t *left, + int32x4_t *right) { + int32x4x2_t out[8]; + vpx_highbd_fdct8x8_pass2_notranspose_neon(left, right); + + out[0].val[0] = left[0]; + out[0].val[1] = right[0]; + out[1].val[0] = left[1]; + out[1].val[1] = right[1]; + out[2].val[0] = left[2]; + out[2].val[1] = right[2]; + out[3].val[0] = left[3]; + out[3].val[1] = right[3]; + out[4].val[0] = left[4]; + out[4].val[1] = right[4]; + out[5].val[0] = left[5]; + out[5].val[1] = right[5]; + out[6].val[0] = left[6]; + out[6].val[1] = right[6]; + out[7].val[0] = left[7]; + out[7].val[1] = right[7]; + + transpose_s32_8x8(&out[0], &out[1], &out[2], &out[3], &out[4], &out[5], + &out[6], &out[7]); + + left[0] = out[0].val[0]; + right[0] = out[0].val[1]; + left[1] = out[1].val[0]; + right[1] = out[1].val[1]; + left[2] = out[2].val[0]; + right[2] = out[2].val[1]; + left[3] = out[3].val[0]; + right[3] = out[3].val[1]; + left[4] = out[4].val[0]; + right[4] = out[4].val[1]; + left[5] = out[5].val[0]; + right[5] = out[5].val[1]; + left[6] = out[6].val[0]; + right[6] = out[6].val[1]; + left[7] = out[7].val[0]; + right[7] = out[7].val[1]; +} + +#endif // CONFIG_VP9_HIGHBITDEPTH +#endif // VPX_VPX_DSP_ARM_FDCT8X8_NEON_H_ |